| Ardmore Municipal (ADM) | Ardmore | OK | M. Graham Clark Downtown to Ardmore Municipal |
| Addison/Dallas (ADS) | Dallas | TX | M. Graham Clark Downtown to Addison/Dallas |
| Ada Municipal (ADT) | Ada | OK | M. Graham Clark Downtown to Ada Municipal |
| Alexandria International (AEX) | Alexandria | LA | M. Graham Clark Downtown to Alexandria International |
| Fort Worth Alliance (AFW) | Fort Worth | TX | M. Graham Clark Downtown to Fort Worth Alliance |
| Magnolia Municipal (AGO) | Magnolia | AR | M. Graham Clark Downtown to Magnolia Municipal |
| Ardmore Downtown Executive (AHD) | Ardmore | OK | M. Graham Clark Downtown to Ardmore Downtown Executive |
| Atlantic Municipal (AIO) | Atlantic | IA | M. Graham Clark Downtown to Atlantic Municipal |
| George Downer (AIV) | Aliceville | AL | M. Graham Clark Downtown to George Downer |
| Lee C Fine Memorial (AIZ) | KAISER/LAKE OZARK | MO | M. Graham Clark Downtown to Lee C Fine Memorial |
| St Louis Regional (ALN) | Alton | IL | M. Graham Clark Downtown to St Louis Regional |
| Ames Municipal (AMW) | Ames | IA | M. Graham Clark Downtown to Ames Municipal |
| Anthony Municipal (ANY) | Anthony | KS | M. Graham Clark Downtown to Anthony Municipal |
| Walnut Ridge (ARG) | Walnut Ridge | AR | M. Graham Clark Downtown to Walnut Ridge |
| Harrison County (ASL) | Marshall | TX | M. Graham Clark Downtown to Harrison County |
| Antlers Municipal (ATE) | Antlers | OK | M. Graham Clark Downtown to Antlers Municipal |
| West Memphis Municipal (AWM) | West Memphis | AR | M. Graham Clark Downtown to West Memphis Municipal |
| Altus/Quartz Mountain Regional (AXS) | Altus | OK | M. Graham Clark Downtown to Altus/Quartz Mountain Regional |
| Beech Factory (BEC) | Wichita | KS | M. Graham Clark Downtown to Beech Factory |
| Virgil I Grissom Municipal (BFR) | Bedford | IN | M. Graham Clark Downtown to Virgil I Grissom Municipal |
| Beatrice Municipal (BIE) | Beatrice | NE | M. Graham Clark Downtown to Beatrice Municipal |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | M. Graham Clark Downtown to MidAmerica St Louis Scott AFB |
| Monroe County (BMG) | Bloomington | IN | M. Graham Clark Downtown to Monroe County |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | M. Graham Clark Downtown to Central Illinois Regional at Bloomington Normal |
| Nashville International (BNA) | Nashville | TN | M. Graham Clark Downtown to Nashville International |
| Boone Municipal (BNW) | Boone | IA | M. Graham Clark Downtown to Boone Municipal |
| Southeast Iowa Regional (BRL) | Burlington | IA | M. Graham Clark Downtown to Southeast Iowa Regional |
| Butler Memorial (BUM) | Butler | MO | M. Graham Clark Downtown to Butler Memorial |
| Bartlesville Municipal (BVO) | Bartlesville | OK | M. Graham Clark Downtown to Bartlesville Municipal |
| Batesville Regional (BVX) | Batesville | AR | M. Graham Clark Downtown to Batesville Regional |
| Bowling Green Warren County Regional (BWG) | Bowling Green | KY | M. Graham Clark Downtown to Bowling Green Warren County Regional |
| Arkansas International (BYH) | Blytheville | AR | M. Graham Clark Downtown to Arkansas International |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | M. Graham Clark Downtown to Council Bluffs Municipal |
| Clinton Municipal (CCA) | Clinton | AR | M. Graham Clark Downtown to Clinton Municipal |
| Harrell Field (CDH) | Camden | AR | M. Graham Clark Downtown to Harrell Field |
| Cessna Aircraft Field (CEA) | Wichita | KS | M. Graham Clark Downtown to Cessna Aircraft Field |
| Kyle-Oakley Field (CEY) | Murray | KY | M. Graham Clark Downtown to Kyle-Oakley Field |
| Coffeyville Municipal (CFV) | Coffeyville | KS | M. Graham Clark Downtown to Coffeyville Municipal |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | M. Graham Clark Downtown to Cape Girardeau Regional |
| Chickasha Municipal (CHK) | Chickasha | OK | M. Graham Clark Downtown to Chickasha Municipal |
| The Eastern Iowa (CID) | Cedar Rapids | IA | M. Graham Clark Downtown to The Eastern Iowa |
| Arthur N Neu (CIN) | Carroll | IA | M. Graham Clark Downtown to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | M. Graham Clark Downtown to Cairo Regional |
| Fletcher Field (CKM) | Clarksdale | MS | M. Graham Clark Downtown to Fletcher Field |
| Outlaw Field (CKV) | Clarksville | TN | M. Graham Clark Downtown to Outlaw Field |
| Clinton Regional (CLK) | Clinton | OK | M. Graham Clark Downtown to Clinton Regional |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | M. Graham Clark Downtown to University of Illinois-Willard |
| Blosser Municipal (CNK) | Concordia | KS | M. Graham Clark Downtown to Blosser Municipal |
| Chanute Martin Johnson (CNU) | Chanute | KS | M. Graham Clark Downtown to Chanute Martin Johnson |
| Columbia Regional (COU) | Columbia | MO | M. Graham Clark Downtown to Columbia Regional |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | M. Graham Clark Downtown to St Louis Downtown |
| C David Campbell Field-Corsicana Municipal (CRS) | Corsicana | TX | M. Graham Clark Downtown to C David Campbell Field-Corsicana Municipal |
| Z M Jack Stell Field (CRT) | Crossett | AR | M. Graham Clark Downtown to Z M Jack Stell Field |
| Roscoe Turner (CRX) | Corinth | MS | M. Graham Clark Downtown to Roscoe Turner |
| Clinton-Sherman (CSM) | Clinton | OK | M. Graham Clark Downtown to Clinton-Sherman |
| Creston Municipal (CSQ) | Creston | IA | M. Graham Clark Downtown to Creston Municipal |
| Cushing Municipal (CUH) | Cushing | OK | M. Graham Clark Downtown to Cushing Municipal |
| Clinton Municipal (CWI) | Clinton | IA | M. Graham Clark Downtown to Clinton Municipal |
| Dallas Love Field (DAL) | Dallas | TX | M. Graham Clark Downtown to Dallas Love Field |
| Pryor Field Regional (DCU) | Decatur | AL | M. Graham Clark Downtown to Pryor Field Regional |
| Dodge City Regional (DDC) | Dodge City | KS | M. Graham Clark Downtown to Dodge City Regional |
| Decatur (DEC) | Decatur | IL | M. Graham Clark Downtown to Decatur |
| Dallas-Fort Worth International (DFW) | Dallas | TX | M. Graham Clark Downtown to Dallas-Fort Worth International |
| Sedalia Regional (DMO) | Sedalia | MO | M. Graham Clark Downtown to Sedalia Regional |
| Denison Municipal (DNS) | Denison | IA | M. Graham Clark Downtown to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | M. Graham Clark Downtown to Vermilion Regional |
| Des Moines International (DSM) | Des Moines | IA | M. Graham Clark Downtown to Des Moines International |
| Shreveport Downtown (DTN) | Shreveport | LA | M. Graham Clark Downtown to Shreveport Downtown |
| Durant Regional - Eaker Field (DUA) | Durant | OK | M. Graham Clark Downtown to Durant Regional - Eaker Field |
| Halliburton Field (DUC) | Duncan | OK | M. Graham Clark Downtown to Halliburton Field |
| Davenport Municipal (DVN) | Davenport | IA | M. Graham Clark Downtown to Davenport Municipal |
| El Dorado/Captain Jack Thomas Memorial (EDK) | El Dorado | KS | M. Graham Clark Downtown to El Dorado/Captain Jack Thomas Memorial |
| Jefferson Municipal (EFW) | Jefferson | IA | M. Graham Clark Downtown to Jefferson Municipal |
| South Arkansas Regional at Goodwin Field (ELD) | El Dorado | AR | M. Graham Clark Downtown to South Arkansas Regional at Goodwin Field |
| Elk City Regional Business (ELK) | Elk City | OK | M. Graham Clark Downtown to Elk City Regional Business |
| Emporia Municipal (EMP) | Emporia | KS | M. Graham Clark Downtown to Emporia Municipal |
| Centralia Municipal (ENL) | Centralia | IL | M. Graham Clark Downtown to Centralia Municipal |
| Keokuk Municipal (EOK) | Keokuk | IA | M. Graham Clark Downtown to Keokuk Municipal |
| Neosho Hugh Robinson (EOS) | Neosho | MO | M. Graham Clark Downtown to Neosho Hugh Robinson |
| Esler Regional (ESF) | Alexandria | LA | M. Graham Clark Downtown to Esler Regional |
| Evansville Regional (EVV) | Evansville | IN | M. Graham Clark Downtown to Evansville Regional |
| Newton City County (EWK) | Newton | KS | M. Graham Clark Downtown to Newton City County |
| Farmington Regional (FAM) | Farmington | MO | M. Graham Clark Downtown to Farmington Regional |
| Fairbury Municipal (FBY) | Fairbury | NE | M. Graham Clark Downtown to Fairbury Municipal |
| Forrest City Municipal (FCY) | Forrest City | AR | M. Graham Clark Downtown to Forrest City Municipal |
| Frederick Regional (FDR) | Frederick | OK | M. Graham Clark Downtown to Frederick Regional |
| Fremont Municipal (FET) | Fremont | NE | M. Graham Clark Downtown to Fremont Municipal |
| Fairfield Municipal (FFL) | Fairfield | IA | M. Graham Clark Downtown to Fairfield Municipal |
| Marion County Regional (FLP) | Flippin | AR | M. Graham Clark Downtown to Marion County Regional |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | M. Graham Clark Downtown to Sherman Army Airfield |
| Fort Madison Municipal (FMS) | Fort Madison | IA | M. Graham Clark Downtown to Fort Madison Municipal |
| Topeka Regional (FOE) | Topeka | KS | M. Graham Clark Downtown to Topeka Regional |
| French Lick Municipal (FRH) | French Lick | IN | M. Graham Clark Downtown to French Lick Municipal |
| Fort Scott Municipal (FSK) | Fort Scott | KS | M. Graham Clark Downtown to Fort Scott Municipal |
| Fort Smith Regional (FSM) | Fort Smith | AR | M. Graham Clark Downtown to Fort Smith Regional |
| Fort Worth Meacham International (FTW) | Fort Worth | TX | M. Graham Clark Downtown to Fort Worth Meacham International |
| Fayetteville Municipal (FYM) | Fayetteville | TN | M. Graham Clark Downtown to Fayetteville Municipal |
| Drake Field (FYV) | Fayetteville | AR | M. Graham Clark Downtown to Drake Field |
| Gage (GAG) | Gage | OK | M. Graham Clark Downtown to Gage |
| Great Bend Municipal (GBD) | Great Bend | KS | M. Graham Clark Downtown to Great Bend Municipal |
| Galesburg Municipal (GBG) | Galesburg | IL | M. Graham Clark Downtown to Galesburg Municipal |
| East Texas Regional (GGG) | Longview | TX | M. Graham Clark Downtown to East Texas Regional |
| Centerville Municipal (GHM) | Centerville | TN | M. Graham Clark Downtown to Centerville Municipal |
| Gainesville Municipal (GLE) | Gainesville | TX | M. Graham Clark Downtown to Gainesville Municipal |
| Greenville Mid-Delta (GLH) | Greenville | MS | M. Graham Clark Downtown to Greenville Mid-Delta |
| Guthrie-Edmond Regional (GOK) | Guthrie | OK | M. Graham Clark Downtown to Guthrie-Edmond Regional |
| Greenville (GRE) | Greenville | IL | M. Graham Clark Downtown to Greenville |
| Golden Triangle Regional (GTR) | Columbus | MS | M. Graham Clark Downtown to Golden Triangle Regional |
| Majors (GVT) | Greenville | TX | M. Graham Clark Downtown to Majors |
| Greenwood Leflore (GWO) | Greenwood | MS | M. Graham Clark Downtown to Greenwood Leflore |
| Marion County-Rankin Fite (HAB) | Hamilton | AL | M. Graham Clark Downtown to Marion County-Rankin Fite |
| Hobart Regional (HBR) | Hobart | OK | M. Graham Clark Downtown to Hobart Regional |
| Thompson-Robbins (HEE) | Helena/West Helena | AR | M. Graham Clark Downtown to Thompson-Robbins |
| Natchez-Adams County (Hardy-Anders Field) (HEZ) | Natchez | MS | M. Graham Clark Downtown to Natchez-Adams County (Hardy-Anders Field) |
| Blytheville Municipal (HKA) | Blytheville | AR | M. Graham Clark Downtown to Blytheville Municipal |
| Hawkins Field (HKS) | Jackson | MS | M. Graham Clark Downtown to Hawkins Field |
| Huntingburg (HNB) | Huntingburg | IN | M. Graham Clark Downtown to Huntingburg |
| Memorial Field (HOT) | Hot Springs | AR | M. Graham Clark Downtown to Memorial Field |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | M. Graham Clark Downtown to Harrisburg-Raleigh |
| Hastings Municipal (HSI) | Hastings | NE | M. Graham Clark Downtown to Hastings Municipal |
| Huntsville International/Carl T Jones Field (HSV) | Huntsville | AL | M. Graham Clark Downtown to Huntsville International/Carl T Jones Field |
| Terre Haute Regional/Hulman Field (HUF) | Terre Haute | IN | M. Graham Clark Downtown to Terre Haute Regional/Hulman Field |
| Stan Stamper Municipal (HUJ) | Hugo | OK | M. Graham Clark Downtown to Stan Stamper Municipal |
| Hutchinson Regional (HUT) | Hutchinson | KS | M. Graham Clark Downtown to Hutchinson Regional |
| Hays Regional (HYS) | Hays | KS | M. Graham Clark Downtown to Hays Regional |
| Schenck Field (ICL) | Clarinda | IA | M. Graham Clark Downtown to Schenck Field |
| Wichita Eisenhower National (ICT) | Wichita | KS | M. Graham Clark Downtown to Wichita Eisenhower National |
| Independence Municipal (IDP) | Independence | KS | M. Graham Clark Downtown to Independence Municipal |
| Jacksonville Municipal (IJX) | Jacksonville | IL | M. Graham Clark Downtown to Jacksonville Municipal |
| Iowa City Municipal (IOW) | Iowa City | IA | M. Graham Clark Downtown to Iowa City Municipal |
| Kirksville Regional (IRK) | Kirksville | MO | M. Graham Clark Downtown to Kirksville Regional |
| Jackson/Evers International (JAN) | Jackson | MS | M. Graham Clark Downtown to Jackson/Evers International |
| Jasper County-Bell Field (JAS) | Jasper | TX | M. Graham Clark Downtown to Jasper County-Bell Field |
| Jonesboro Municipal (JBR) | Jonesboro | AR | M. Graham Clark Downtown to Jonesboro Municipal |
| New Century Aircenter (JCI) | Olathe | KS | M. Graham Clark Downtown to New Century Aircenter |
| Jefferson City Memorial (JEF) | Jefferson City | MO | M. Graham Clark Downtown to Jefferson City Memorial |
| Cherokee County (JKV) | Jacksonville | TX | M. Graham Clark Downtown to Cherokee County |
| Joplin Regional (JLN) | Joplin | MO | M. Graham Clark Downtown to Joplin Regional |
| Kickapoo Downtown (KIP) | Wichita Falls | TX | M. Graham Clark Downtown to Kickapoo Downtown |
| Kennett Memorial (KNT) | Kennett | MO | M. Graham Clark Downtown to Kennett Memorial |
| Fort Sill Regional Lawton (LAW) | Lawton | OK | M. Graham Clark Downtown to Fort Sill Regional Lawton |
| Angelina County (LFK) | Lufkin | TX | M. Graham Clark Downtown to Angelina County |
| Bill & Hillary Clinton National/Adams Field (LIT) | Little Rock | AR | M. Graham Clark Downtown to Bill & Hillary Clinton National/Adams Field |
| Louisville Winston County (LMS) | Louisville | MS | M. Graham Clark Downtown to Louisville Winston County |
| Lincoln Municipal (LNK) | Lincoln | NE | M. Graham Clark Downtown to Lincoln Municipal |
| Lawrence Municipal (LWC) | Lawrence | KS | M. Graham Clark Downtown to Lawrence Municipal |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | M. Graham Clark Downtown to Lawrenceville-Vincennes International |
| Lyons-Rice County Muni (LYO) | Lyons | KS | M. Graham Clark Downtown to Lyons-Rice County Muni |
| Malden Regional (MAW) | Malden | MO | M. Graham Clark Downtown to Malden Regional |
| Omar N Bradley (MBY) | Moberly | MO | M. Graham Clark Downtown to Omar N Bradley |
| Kansas City International (MCI) | Kansas City | MO | M. Graham Clark Downtown to Kansas City International |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | M. Graham Clark Downtown to Southern Illinois |
| Meridian/Key Field (MEI) | Meridian | MS | M. Graham Clark Downtown to Meridian/Key Field |
| Memphis International (MEM) | Memphis | TN | M. Graham Clark Downtown to Memphis International |
| Manhattan Regional (MHK) | Manhattan | KS | M. Graham Clark Downtown to Manhattan Regional |
| Marshall Memorial Municipal (MHL) | Marshall | MO | M. Graham Clark Downtown to Marshall Memorial Municipal |
| Miami Regional (MIO) | Miami | OK | M. Graham Clark Downtown to Miami Regional |
| Omaha Millard (MIQ) | Omaha | NE | M. Graham Clark Downtown to Omaha Millard |
| Marshalltown Municipal (MIW) | Marshalltown | IA | M. Graham Clark Downtown to Marshalltown Municipal |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | M. Graham Clark Downtown to Charles B Wheeler Downtown |
| Mckellar Sipes Regional (MKL) | Jackson | TN | M. Graham Clark Downtown to Mckellar Sipes Regional |
| Muskogee-Davis Regional (MKO) | Muskogee | OK | M. Graham Clark Downtown to Muskogee-Davis Regional |
| Mcalester Regional (MLC) | Mc Alester | OK | M. Graham Clark Downtown to Mcalester Regional |
| Quad City International (MLI) | Moline | IL | M. Graham Clark Downtown to Quad City International |
| Monroe Regional (MLU) | Monroe | LA | M. Graham Clark Downtown to Monroe Regional |
| Marks/Selfs (MMS) | Marks | MS | M. Graham Clark Downtown to Marks/Selfs |
| Petit Jean Park (MPJ) | Morrilton | AR | M. Graham Clark Downtown to Petit Jean Park |
| Mcpherson (MPR) | McPherson | KS | M. Graham Clark Downtown to Mcpherson |
| Mount Pleasant Regional (MPS) | Mount Pleasant | TX | M. Graham Clark Downtown to Mount Pleasant Regional |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | M. Graham Clark Downtown to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | M. Graham Clark Downtown to Macomb Municipal |
| Smyrna (MQY) | Smyrna | TN | M. Graham Clark Downtown to Smyrna |
| Maury County (MRC) | Columbia | TN | M. Graham Clark Downtown to Maury County |
| Northwest Alabama Regional (MSL) | Muscle Shoals | AL | M. Graham Clark Downtown to Northwest Alabama Regional |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | M. Graham Clark Downtown to Coles County Memorial |
| Muscatine Municipal (MUT) | Muscatine | IA | M. Graham Clark Downtown to Muscatine Municipal |
| Mount Vernon (MVN) | Mount Vernon | IL | M. Graham Clark Downtown to Mount Vernon |
| Williamson County Rgnl (MWA) | Marion | IL | M. Graham Clark Downtown to Williamson County Rgnl |
| Mineral Wells (MWL) | Mineral Wells | TX | M. Graham Clark Downtown to Mineral Wells |
| Manila Municipal (MXA) | Manila | AR | M. Graham Clark Downtown to Manila Municipal |
| Millington Regional Jetport (NQA) | Millington | TN | M. Graham Clark Downtown to Millington Regional Jetport |
| Nevada Municipal (NVD) | Nevada | MO | M. Graham Clark Downtown to Nevada Municipal |
| A L Mangham Jr. Regional (OCH) | Nacogdoches | TX | M. Graham Clark Downtown to A L Mangham Jr. Regional |
| Johnson County Executive (OJC) | Olathe | KS | M. Graham Clark Downtown to Johnson County Executive |
| Will Rogers World (OKC) | Oklahoma City | OK | M. Graham Clark Downtown to Will Rogers World |
| Okmulgee Regional (OKM) | Okmulgee | OK | M. Graham Clark Downtown to Okmulgee Regional |
| Columbus Municipal (OLU) | Columbus | NE | M. Graham Clark Downtown to Columbus Municipal |
| Olive Branch (OLV) | Olive Branch | MS | M. Graham Clark Downtown to Olive Branch |
| Olney-Noble (OLY) | Olney-Noble | IL | M. Graham Clark Downtown to Olney-Noble |
| Eppley Airfield (OMA) | Omaha | NE | M. Graham Clark Downtown to Eppley Airfield |
| Olney Municipal (ONY) | Olney | TX | M. Graham Clark Downtown to Olney Municipal |
| Oskaloosa Municipal (OOA) | Oskaloosa | IA | M. Graham Clark Downtown to Oskaloosa Municipal |
| Grand Glaize Osage Beach (OSB) | Osage Beach | MO | M. Graham Clark Downtown to Grand Glaize Osage Beach |
| Kosciusko-Attala County (OSX) | Kosciusko | MS | M. Graham Clark Downtown to Kosciusko-Attala County |
| Ottumwa Regional (OTM) | Ottumwa | IA | M. Graham Clark Downtown to Ottumwa Regional |
| University of Oklahoma Max Westheimer (OUN) | Norman | OK | M. Graham Clark Downtown to University of Oklahoma Max Westheimer |
| Owensboro-Daviess County Regional (OWB) | Owensboro | KY | M. Graham Clark Downtown to Owensboro-Daviess County Regional |
| Barkley Regional (PAH) | Paducah | KY | M. Graham Clark Downtown to Barkley Regional |
| Pine Bluff Regional-Grider Field (PBF) | Pine Bluff | AR | M. Graham Clark Downtown to Pine Bluff Regional-Grider Field |
| Paragould/Kirk Field (PGR) | Paragould | AR | M. Graham Clark Downtown to Paragould/Kirk Field |
| Henry County (PHT) | Paris | TN | M. Graham Clark Downtown to Henry County |
| Gen Wayne A Downing Peoria International (PIA) | Peoria | IL | M. Graham Clark Downtown to Gen Wayne A Downing Peoria International |
| Ponca City Regional (PNC) | Ponca City | OK | M. Graham Clark Downtown to Ponca City Regional |
| North Texas Regional/Perrin Field (PNX) | Sherman/Denison | TX | M. Graham Clark Downtown to North Texas Regional/Perrin Field |
| Poplar Bluff Municipal (POF) | Poplar Bluff | MO | M. Graham Clark Downtown to Poplar Bluff Municipal |
| Parsons/Tri-City (PPF) | Parsons | KS | M. Graham Clark Downtown to Parsons/Tri-City |
| Perry Municipal (PRO) | Perry | IA | M. Graham Clark Downtown to Perry Municipal |
| Cox Field (PRX) | Paris | TX | M. Graham Clark Downtown to Cox Field |
| Palestine Municipal (PSN) | Palestine | TX | M. Graham Clark Downtown to Palestine Municipal |
| Atkinson Municipal (PTS) | Pittsburg | KS | M. Graham Clark Downtown to Atkinson Municipal |
| Pratt Regional (PTT) | Pratt | KS | M. Graham Clark Downtown to Pratt Regional |
| Wiley Post (PWA) | Oklahoma City | OK | M. Graham Clark Downtown to Wiley Post |
| Dallas Executive (RBD) | Dallas | TX | M. Graham Clark Downtown to Dallas Executive |
| Rooks County Regional (RCP) | Stockton | KS | M. Graham Clark Downtown to Rooks County Regional |
| Robert S Kerr (RKR) | Poteau | OK | M. Graham Clark Downtown to Robert S Kerr |
| Rolla Downtown (RLA) | Rolla | MO | M. Graham Clark Downtown to Rolla Downtown |
| Rogers Executive/Carter Field (ROG) | Rogers | AR | M. Graham Clark Downtown to Rogers Executive/Carter Field |
| Russell Municipal (RSL) | Russell | KS | M. Graham Clark Downtown to Russell Municipal |
| Ruston Regional (RSN) | Ruston | LA | M. Graham Clark Downtown to Ruston Regional |
| Tulsa/Richard Lloyd Jones Jr (RVS) | Tulsa | OK | M. Graham Clark Downtown to Tulsa/Richard Lloyd Jones Jr |
| Sparta Community - Hunter Field (SAR) | Sparta | IL | M. Graham Clark Downtown to Sparta Community - Hunter Field |
| Scribner State (SCB) | Scribner | NE | M. Graham Clark Downtown to Scribner State |
| Springfield/Branson National (SGF) | Springfield | MO | M. Graham Clark Downtown to Springfield/Branson National |
| Stuttgart Municipal (SGT) | Stuttgart | AR | M. Graham Clark Downtown to Stuttgart Municipal |
| Shreveport Regional (SHV) | Shreveport | LA | M. Graham Clark Downtown to Shreveport Regional |
| Sikeston Memorial Municipal (SIK) | Sikeston | MO | M. Graham Clark Downtown to Sikeston Memorial Municipal |
| Sullivan County (SIV) | Sullivan | IN | M. Graham Clark Downtown to Sullivan County |
| Smith Field/Siloam Springs Municipal (SLG) | Siloam Springs | AR | M. Graham Clark Downtown to Smith Field/Siloam Springs Municipal |
| Salina Regional (SLN) | Salina | KS | M. Graham Clark Downtown to Salina Regional |
| Salem-Leckrone (SLO) | Salem | IL | M. Graham Clark Downtown to Salem-Leckrone |
| Sulphur Springs Municipal (SLR) | Sulphur Springs | TX | M. Graham Clark Downtown to Sulphur Springs Municipal |
| Shawnee Regional (SNL) | Shawnee | OK | M. Graham Clark Downtown to Shawnee Regional |
| Abraham Lincoln Capital (SPI) | Springfield | IL | M. Graham Clark Downtown to Abraham Lincoln Capital |
| Wichita Falls Regional/Sheppard AFB (SPS) | Wichita Falls | TX | M. Graham Clark Downtown to Wichita Falls Regional/Sheppard AFB |
| Springdale Municipal (SPZ) | Springdale | AR | M. Graham Clark Downtown to Springdale Municipal |
| Whiteside Co-Jos H Bittorf Field (SQI) | Sterling/Rock Falls | IL | M. Graham Clark Downtown to Whiteside Co-Jos H Bittorf Field |
| Searcy Municipal (SRC) | Searcy | AR | M. Graham Clark Downtown to Searcy Municipal |
| Rosecrans Memorial (STJ) | St Joseph | MO | M. Graham Clark Downtown to Rosecrans Memorial |
| Lambert St Louis International (STL) | St Louis | MO | M. Graham Clark Downtown to Lambert St Louis International |
| Stroud Municipal (SUD) | Stroud | OK | M. Graham Clark Downtown to Stroud Municipal |
| Spirit of St Louis (SUS) | St Louis | MO | M. Graham Clark Downtown to Spirit of St Louis |
| Stillwater Regional (SWO) | Stillwater | OK | M. Graham Clark Downtown to Stillwater Regional |
| Shelbyville Municipal/Bomar Field (SYI) | Shelbyville | TN | M. Graham Clark Downtown to Shelbyville Municipal/Bomar Field |
| Waynesville St Robert Regional/Forney Field (TBN) | Fort Leonard Wood | MO | M. Graham Clark Downtown to Waynesville St Robert Regional/Forney Field |
| Tuscaloosa Regional (TCL) | Tuscaloosa | AL | M. Graham Clark Downtown to Tuscaloosa Regional |
| Tullahoma Regional/William Northern Field (THA) | Tullahoma | TN | M. Graham Clark Downtown to Tullahoma Regional/William Northern Field |
| Newton Municipal (TNU) | Newton | IA | M. Graham Clark Downtown to Newton Municipal |
| Philip Billard Municipal (TOP) | Topeka | KS | M. Graham Clark Downtown to Philip Billard Municipal |
| Terrell Municipal (TRL) | Terrell | TX | M. Graham Clark Downtown to Terrell Municipal |
| Trenton Municipal (TRX) | Trenton | MO | M. Graham Clark Downtown to Trenton Municipal |
| Tulsa International (TUL) | Tulsa | OK | M. Graham Clark Downtown to Tulsa International |
| Tupelo Regional (TUP) | Tupelo | MS | M. Graham Clark Downtown to Tupelo Regional |
| Texarkana Regional/Webb Field (TXK) | Texarkana | AR | M. Graham Clark Downtown to Texarkana Regional/Webb Field |
| Tyler Pounds Regional (TYR) | Tyler | TX | M. Graham Clark Downtown to Tyler Pounds Regional |
| Columbus-Lowndes County (UBS) | Columbus | MS | M. Graham Clark Downtown to Columbus-Lowndes County |
| Everett-Stewart Regional (UCY) | Union City | TN | M. Graham Clark Downtown to Everett-Stewart Regional |
| Baldwin Field/Quincy Regional (UIN) | Quincy | IL | M. Graham Clark Downtown to Baldwin Field/Quincy Regional |
| University-Oxford (UOX) | Oxford | MS | M. Graham Clark Downtown to University-Oxford |
| Tunica Municipal (UTM) | Tunica | MS | M. Graham Clark Downtown to Tunica Municipal |
| Rolla National (VIH) | Rolla/Vichy | MO | M. Graham Clark Downtown to Rolla National |
| Vicksburg Municipal (VKS) | Vicksburg | MS | M. Graham Clark Downtown to Vicksburg Municipal |
| Vandalia Municipal (VLA) | Vandalia | IL | M. Graham Clark Downtown to Vandalia Municipal |
| Roy Otten Memorial Airfield (VRS) | Versailles | MO | M. Graham Clark Downtown to Roy Otten Memorial Airfield |
| Walter A Duncan Field/Illinois Valley Regional (VYS) | Peru | IL | M. Graham Clark Downtown to Walter A Duncan Field/Illinois Valley Regional |
| Enid Woodring Regional (WDG) | Enid | OK | M. Graham Clark Downtown to Enid Woodring Regional |
| Parker County Airport (WEA) | Weatherford | TX | M. Graham Clark Downtown to Parker County Airport |
| Strother Field (WLD) | Winfield | KS | M. Graham Clark Downtown to Strother Field |
| Baxter County (WMH) | Mountain Home | AR | M. Graham Clark Downtown to Baxter County |
| West Woodward (WWR) | Woodward | OK | M. Graham Clark Downtown to West Woodward |
| Northwest Arkansas Regional (XNA) | Fayetteville/Springdale | AR | M. Graham Clark Downtown to Northwest Arkansas Regional |
